[JENKINS-50668] Prevent loading file in memory on upload

Fixes java.lang.OutOfMemoryError: Java heap space
jenkinsci · Apr 9, 2018 · cfe56d3 · cfe56d3
1 parent 3a5d4d3
commit cfe56d3
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/src/main/java/io/jenkins/plugins/artifact_manager_s3/JCloudsArtifactManager.java b/src/main/java/io/jenkins/plugins/artifact_manager_s3/JCloudsArtifactManager.java
@@ -349,6 +349,7 @@ private static void uploadFile(Path f, URL url) throws IOException {
         HttpURLConnection connection = (HttpURLConnection) url.openConnection();
         connection.setDoOutput(true);
         connection.setRequestMethod("PUT");
+        connection.setFixedLengthStreamingMode(Files.size(f)); // prevent loading file in memory
         try (OutputStream out = connection.getOutputStream()) {
             Files.copy(f, out);
         }